quck fixes to issues i noticed while doing a general overview

src/imgui/documents.cpp

@@ -175,7 +175,6 @@ namespace anm2ed::imgui
       {
         if (!manager.anm2DragDropPopup.is_open()) manager.anm2DragDropPopup.open();
 
-        bool wasOpen = manager.anm2DragDropPopup.is_open();
         manager.anm2DragDropPopup.trigger();
 
         if (ImGui::BeginPopupContextWindow(manager.anm2DragDropPopup.label, ImGuiPopupFlags_None))
@@ -212,7 +211,7 @@ namespace anm2ed::imgui
           manager.anm2DragDropPopup.end();
           ImGui::EndPopup();
         }
-        else if (wasOpen && !manager.anm2DragDropPopup.is_open())
+        else if (!ImGui::IsPopupOpen(manager.anm2DragDropPopup.label))
           drag_drop_reset();
       }
     }

src/imgui/taskbar.cpp

@@ -909,8 +909,10 @@ namespace anm2ed::imgui
     if (shortcut(manager.chords[SHORTCUT_OPEN], shortcut::GLOBAL)) dialog.file_open(dialog::ANM2_OPEN);
     if (shortcut(manager.chords[SHORTCUT_SAVE], shortcut::GLOBAL))
     {
-      if (settings.fileIsWarnOverwrite) overwritePopup.open();
+      if (settings.fileIsWarnOverwrite)
-      manager.save();
+        overwritePopup.open();
+      else
+        manager.save();
     }
     if (shortcut(manager.chords[SHORTCUT_SAVE_AS], shortcut::GLOBAL)) dialog.file_save(dialog::ANM2_SAVE);
     if (shortcut(manager.chords[SHORTCUT_EXIT], shortcut::GLOBAL)) isQuitting = true;

src/imgui/window/animation_preview.cpp

@@ -363,8 +363,10 @@ namespace anm2ed::imgui
 
         if (!isOnlyShowLayers && root.isVisible && animation->rootAnimation.isVisible)
         {
-          auto rootTransform = baseTransform * math::quad_model_get(TARGET_SIZE, root.position, TARGET_SIZE * 0.5f,
+          auto rootTransform =
-                                                                    math::percent_to_unit(root.scale), root.rotation);
+              isRootTransform ? baseTransform * math::quad_model_get(TARGET_SIZE, root.position, TARGET_SIZE * 0.5f,
+                                                                     math::percent_to_unit(root.scale), root.rotation)
+                              : baseTransform * math::quad_model_get(TARGET_SIZE, {}, TARGET_SIZE * 0.5f);
 
           vec4 color = isOnionskin ? vec4(colorOffset, alphaOffset) : color::GREEN;
 

src/imgui/window/timeline.cpp

@@ -1,7 +1,6 @@
 #include "timeline.h"
 
 #include <algorithm>
-#include <cstddef>
 
 #include <imgui_internal.h>
 

src/state.cpp

@@ -34,6 +34,7 @@ namespace anm2ed
   void State::update(SDL_Window*& window, Settings& settings)
   {
     SDL_Event event{};
+    bool openDroppedDocumentsImmediately = manager.documents.empty();
 
     while (SDL_PollEvent(&event))
     {
@@ -46,8 +47,10 @@ namespace anm2ed
           if (filesystem::path_is_extension(droppedFile, "anm2"))
           {
             std::filesystem::path droppedPath{droppedFile};
-            if (manager.documents.empty())
+            if (openDroppedDocumentsImmediately)
+            {
               manager.open(droppedPath);
+            }
             else
             {
               if (std::find(manager.anm2DragDropPaths.begin(), manager.anm2DragDropPaths.end(), droppedPath) ==